The Waste-to-Energy plant managed by Chartres Métropole Traitement and Valorization (CMTV) is located in Mainvilliers, France.
This site has 2 kilns (7.5 t/h) capable of valorizing household waste and ordinary industrial waste.
The flue gases are treated by a “¾ dry” process (filtration at 160°C). The treatment of micro-pollutants was historically carried
out by injection of activated carbon delivered in bulk by 25 tons.
To avoid having to manage an ATEX zone, Lhoist recommended in 2014 to switch to Sorbacal® Micro 4099.
To anticipate future emission limits for micro-pollutants, the site was looking for a more efficient solution, especially for mercury capture.
Lhoist recommended upgrading to Sorbacal® Micro 5099. This non-ATEX product was developed by Lhoist for the reduction of dioxins/furans and enhanced mercury capture. The effectiveness of the reagent, dosed at 0.3 kg per ton of incinerated waste, was measured during a compliance control.
| Trial 1 | Trial 2 | Trial 3 | |
| Upstream (μg/m3) | 20 | 140 | 90 |
| Downstream (μg/m3) | 4 | 2 | 4 |
| Abatement (%) | 80 | 98.6 | 95.6 |
Concentrations on dry gas at 11% O2
| Trial 1 | |
| Upstream (ng TEQ/Nm3) | 0.404 |
| Downstream (ng TEQ/Nm3) | n.d |
| Abatement (%) | 99.99 |
These measurements made it possible to confirm the abatement performance of the reagent for both mercury and dioxins/furans.
Sorbacal® Micro 5099 meets the customer’s expectations: